Data carrier for transmitting data with different repetition...

Details Data carrier for transmitting data with different repetition... Data carrier for transmitting data with different repetition...

2006-05-23

2006-05-23

Horabik, Michael (Department: 2635)

Communications: electrical

Selective

Interrogation response

C340S010100, C370S445000

Reexamination Certificate

active

07049934

ABSTRACT:
A data carrier is configured to monitor the power of a received signal from a base station, and to vary its “Aloha” transmission based on the power of the received signal. The time period, or repetition frequency, associated with the Aloha transmission is controlled based on the received power, such that a higher received power provides a longer time period between transmissions. In this way, transmitters that are farther away from the base station are provided more frequent opportunities to have their transmissions received without collisions than transmitters that are closer to the base station.

REFERENCES:
patent: 5479595 (1995-12-01), Israelsson
patent: 5485154 (1996-01-01), Brooks et al.
patent: 6566997 (2003-05-01), Bradin
patent: WO9965168 (1999-05-01), None

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